Home / 205,848.80-308,967.60-127,116.80

Finding the Fourth Proportional to 205,848.80, 308,967.60 and 127,116.80

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Solution

The fourth proportional to 205,848.80, 308,967.60 and 127,116.80 is: 190,795.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,848.80 : 308,967.60 = 127,116.80 : x
  2. Step 2: Convert to fraction form
    205,848.80/308,967.60 = 127,116.80/x
  3. Step 3: Cross multiply
    205,848.80x = 308,967.60 × 127,116.80
  4. Step 4: Simplify right side
    205,848.80x = 39,274,972,615.68
  5. Step 5: Solve for x
    x = 39,274,972,615.68/205,848.80
  6. Step 6: Final answer
    x = 190,795.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.